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Andersen J, Jeffrey B, Varikatt W, Rodriguez M, Lin MW, Brown DA. IgLON5-IgG: Innocent Bystander or Perpetrator? Int J Mol Sci 2024; 25:7956. [PMID: 39063198 PMCID: PMC11276813 DOI: 10.3390/ijms25147956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
Anti-IgLON5 (IgLON5-IgG)-associated disease is a newly defined clinical entity. This literature review aims to evaluate its pathogenesis, which remains a pivotal question. Features that favour a primary neurodegenerative mechanism include the non-inflammatory tauopathy neuropathological signature and overrepresentation of microtubule-associated protein tau (MAPT) H1/H1 genotype as seen in other sporadic tauopathies. In contrast, the cell-surface localisation of IgLON5, capability of anti-IgLON5 antibodies to exert direct in vitro pathogenicity and disrupt IgLON5 interactions with its binding partners, human leukocyte antigen (HLA)-DRB1*10:01 and HLA-DQB1*05:01 allele preponderance with high affinity binding of IgLON5 peptides, and responsiveness to immunotherapy favour a primary autoimmune process. The presentation and course of anti-IgLON5-associated disease is heterogenous; hence, we hypothesise that a multitude of immune mechanisms are likely simultaneously operational in this disease cohort.
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Affiliation(s)
- Jane Andersen
- Department of Immunology, NSW Health Pathology-ICPMR, Westmead Hospital, Sydney, NSW 2145, Australia; (B.J.); (M.-W.L.); (D.A.B.)
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; (W.V.); (M.R.)
| | - Bronte Jeffrey
- Department of Immunology, NSW Health Pathology-ICPMR, Westmead Hospital, Sydney, NSW 2145, Australia; (B.J.); (M.-W.L.); (D.A.B.)
- Faculty of Medicine, Western Sydney University, Sydney, NSW 2751, Australia
| | - Winny Varikatt
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; (W.V.); (M.R.)
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology-ICPMR, Westmead Hospital, Sydney, NSW 2145, Australia
| | - Michael Rodriguez
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; (W.V.); (M.R.)
- Douglass Hanly Moir Pathology, Sydney, NSW 2000, Australia
| | - Ming-Wei Lin
- Department of Immunology, NSW Health Pathology-ICPMR, Westmead Hospital, Sydney, NSW 2145, Australia; (B.J.); (M.-W.L.); (D.A.B.)
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; (W.V.); (M.R.)
| | - David A. Brown
- Department of Immunology, NSW Health Pathology-ICPMR, Westmead Hospital, Sydney, NSW 2145, Australia; (B.J.); (M.-W.L.); (D.A.B.)
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; (W.V.); (M.R.)
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2
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Samudra N, Lane-Donovan C, VandeVrede L, Boxer AL. Tau pathology in neurodegenerative disease: disease mechanisms and therapeutic avenues. J Clin Invest 2023; 133:e168553. [PMID: 37317972 PMCID: PMC10266783 DOI: 10.1172/jci168553] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023] Open
Abstract
Tauopathies are disorders associated with tau protein dysfunction and insoluble tau accumulation in the brain at autopsy. Multiple lines of evidence from human disease, as well as nonclinical translational models, suggest that tau has a central pathologic role in these disorders, historically thought to be primarily related to tau gain of toxic function. However, a number of tau-targeting therapies with various mechanisms of action have shown little promise in clinical trials in different tauopathies. We review what is known about tau biology, genetics, and therapeutic mechanisms that have been tested in clinical trials to date. We discuss possible reasons for failures of these therapies, such as use of imperfect nonclinical models that do not predict human effects for drug development; heterogeneity of human tau pathologies which may lead to variable responses to therapy; and ineffective therapeutic mechanisms, such as targeting of the wrong tau species or protein epitope. Innovative approaches to human clinical trials can help address some of the difficulties that have plagued our field's development of tau-targeting therapies thus far. Despite limited clinical success to date, as we continue to refine our understanding of tau's pathogenic mechanism(s) in different neurodegenerative diseases, we remain optimistic that tau-targeting therapies will eventually play a central role in the treatment of tauopathies.
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3
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Tauber CV, Schwarz SC, Rösler TW, Arzberger T, Gentleman S, Windl O, Krumbiegel M, Reis A, Ruf VC, Herms J, Höglinger GU. Different MAPT haplotypes influence expression of total MAPT in postmortem brain tissue. Acta Neuropathol Commun 2023; 11:40. [PMID: 36906636 PMCID: PMC10008602 DOI: 10.1186/s40478-023-01534-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/21/2023] [Indexed: 03/13/2023] Open
Abstract
The MAPT gene, encoding the microtubule-associated protein tau on chromosome 17q21.31, is result of an inversion polymorphism, leading to two allelic variants (H1 and H2). Homozygosity for the more common haplotype H1 is associated with an increased risk for several tauopathies, but also for the synucleinopathy Parkinson's disease (PD). In the present study, we aimed to clarify whether the MAPT haplotype influences expression of MAPT and SNCA, encoding the protein α-synuclein (α-syn), on mRNA and protein levels in postmortem brains of PD patients and controls. We also investigated mRNA expression of several other MAPT haplotype-encoded genes. Postmortem tissues from cortex of fusiform gyrus (ctx-fg) and of the cerebellar hemisphere (ctx-cbl) of neuropathologically confirmed PD patients (n = 95) and age- and sex-matched controls (n = 81) were MAPT haplotype genotyped to identify cases homozygous for either H1 or H2. Relative expression of genes was quantified using real-time qPCR; soluble and insoluble protein levels of tau and α-syn were determined by Western blotting. Homozygosity for H1 versus H2 was associated with increased total MAPT mRNA expression in ctx-fg regardless of disease state. Inversely, H2 homozygosity was associated with markedly increased expression of the corresponding antisense MAPT-AS1 in ctx-cbl. PD patients had higher levels of insoluble 0N3R and 1N4R tau isoforms regardless of the MAPT genotype. The increased presence of insoluble α-syn in PD patients in ctx-fg validated the selected postmortem brain tissue. Our findings in this small, but well controlled cohort of PD and controls support a putative biological relevance of tau in PD. However, we did not identify any link between the disease-predisposing H1/H1 associated overexpression of MAPT with PD status. Further studies are required to gain a deeper understanding of the potential regulatory role of MAPT-AS1 and its association to the disease-protective H2/H2 condition in the context of PD.
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Affiliation(s)
- Christina V Tauber
- Department of Translational Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Department of Neurology, School of Medicine, Technical University Munich, Munich, Germany.,Department of Obstetrics and Gynecology, Ludiwgs-Maximilians University of Munich, Munich, Germany
| | - Sigrid C Schwarz
- Department of Translational Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Thomas W Rösler
- Department of Translational Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Department of Neurology, School of Medicine, Technical University Munich, Munich, Germany
| | - Thomas Arzberger
- Center for Neuropathology and Prion Research, Ludwig-Maximilians University of Munich, Munich, Germany.,Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Steve Gentleman
- Parkinson's UK Brain Bank, Department of Brain Sciences, Imperial College London, London, UK.,Neuropathology Unit, Department of Brain Sciences, Department of Medicine, Imperial College London, London, UK
| | - Otto Windl
- Center for Neuropathology and Prion Research, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Mandy Krumbiegel
- Institute of Human Genetics, Friedrich-Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - André Reis
- Institute of Human Genetics, Friedrich-Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Viktoria C Ruf
- Center for Neuropathology and Prion Research, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Jochen Herms
- Center for Neuropathology and Prion Research, Ludwig-Maximilians University of Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Günter U Höglinger
- Department of Translational Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Munich, Germany. .,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany. .,Department of Neurology, Ludwig-Maximilians University of Munich, Munich, Germany.
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4
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Pan L, Meng L, He M, Zhang Z. Tau in the Pathophysiology of Parkinson's Disease. J Mol Neurosci 2021; 71:2179-2191. [PMID: 33459970 PMCID: PMC8585831 DOI: 10.1007/s12031-020-01776-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022]
Abstract
The pathological hallmarks of Parkinson's disease (PD) are the progressive loss of dopaminergic neurons in the substantia nigra and the formation of Lewy bodies (LBs) in remaining neurons. LBs primarily consist of aggregated α-Synuclein (α-Syn). However, accumulating evidence suggests that Tau, which is associated with tauopathies such as Alzheimer's disease (AD), progressive supranuclear palsy (PSP), and argyrophilic grain disease, is also involved in the pathophysiology of PD. A genome-wide association study (GWAS) identified MAPT, the gene encoding the Tau protein, as a risk gene for PD. Autopsy of PD patients also revealed the colocalization of Tau and α-Syn in LBs. Experimental evidence has shown that Tau interacts with α-Syn and influences the pathology of α-Syn in PD. In this review, we discuss the structure and function of Tau and provide a summary of the current evidence supporting Tau's involvement as either an active or passive element in the pathophysiology of PD, which may provide novel targets for the early diagnosis and treatment of PD.
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Affiliation(s)
- Lina Pan
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Lanxia Meng
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Mingyang He
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zhentao Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Olszewska DA, Fearon C, McGuigan C, McVeigh TP, Houlden H, Polke JM, Lawlor B, Coen R, Hutchinson M, Hutton M, Beausang A, Delon I, Brett F, Sevastou I, Seto-Salvia N, de Silva R, Lynch T. A clinical, molecular genetics and pathological study of a FTDP-17 family with a heterozygous splicing variant c.823-10G>T at the intron 9/exon 10 of the MAPT gene. Neurobiol Aging 2021; 106:343.e1-343.e8. [PMID: 34274155 DOI: 10.1016/j.neurobiolaging.2021.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/17/2021] [Accepted: 05/13/2021] [Indexed: 11/15/2022]
Abstract
We report the first clinical-radiological-genetic-molecular-pathological study of a kindred with c.823-10G>T MAPT intronic variant (rs63749974) associated with frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17). We describe the clinical spectrum within this family and emphasize the association between MAPT gene variants and motor neuron disease. This report of a second family with FTDP-17 associated with c.823-10G>T MAPT variant strongly supports pathogenicity of the variant and confirms it is a 4-repeat (4R) tauopathy. This intronic point mutation, probably strengthens the polypyrimidine tract and alters the splicing of exon 10 (10 nucleotides into intron 9) close to the 3' splice site.
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Affiliation(s)
- Diana A Olszewska
- Department of Neurology, Dublin Neurological Institute, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Conor Fearon
- Department of Neurology, Dublin Neurological Institute, Mater Misericordiae University Hospital, Dublin, Ireland
| | | | | | - Henry Houlden
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - James M Polke
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Brian Lawlor
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Robert Coen
- Mercer's Institute of Aging, St James's Hospital Dublin, Ireland
| | | | - Michael Hutton
- Department of Neurology, St Vincent's University Hospital, Dublin, Ireland
| | - Alan Beausang
- Eli Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, USA
| | - Isabelle Delon
- Department of Neuropathology, Beaumont Hospital, Dublin, Ireland
| | - Francesca Brett
- East Genomic Laboratory Hub, Cambridge University Hospital NHS Foundation Trust, Addenbrooke's Treatment Centre, Hills Road, Cambridge, UK
| | - Ioanna Sevastou
- Department of Neuropathology, Beaumont Hospital, Dublin, Ireland
| | - Nuria Seto-Salvia
- East Genomic Laboratory Hub, Cambridge University Hospital NHS Foundation Trust, Addenbrooke's Treatment Centre, Hills Road, Cambridge, UK
| | - Rohan de Silva
- Department of Clinical and Movement Neuroscience, Reta Lila Weston Institute, UCL Queen Square Institute of Neurology, London, UK
| | - Tim Lynch
- Department of Neurology, Dublin Neurological Institute, Mater Misericordiae University Hospital, Dublin, Ireland; Health affairs, University College Dublin, Dublin, Ireland; Ireland East Hospital Group, Dublin, Ireland.
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Strauß T, Marvian-Tayaranian A, Sadikoglou E, Dhingra A, Wegner F, Trümbach D, Wurst W, Heutink P, Schwarz SC, Höglinger GU. iPS Cell-Based Model for MAPT Haplotype as a Risk Factor for Human Tauopathies Identifies No Major Differences in TAU Expression. Front Cell Dev Biol 2021; 9:726866. [PMID: 34532319 PMCID: PMC8438159 DOI: 10.3389/fcell.2021.726866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/09/2021] [Indexed: 11/13/2022] Open
Abstract
The H1 haplotype of the microtubule-associated protein tau (MAPT) gene is a common genetic risk factor for some neurodegenerative diseases such as progressive supranuclear palsy, corticobasal degeneration, and Parkinson's disease. The molecular mechanism causing the increased risk for the named diseases, however, remains unclear. In this paper, we present a valuable tool of eight small molecule neural precursor cell lines (smNPC) homozygous for the MAPT haplotypes (four H1/H1 and four H2/H2 cell lines), which can be used to identify MAPT-dependent phenotypes. The employed differentiation protocol is fast due to overexpression of NEUROGENIN-2 and therefore suitable for high-throughput approaches. A basic characterization of all human cell lines was performed, and their TAU and α-SYNUCLEIN profiles were compared during a differentiation time of 30 days. We could identify higher levels of conformationally altered TAU in cell lines carrying the H2 haplotype. Additionally, we found increased expression levels of α-SYNUCLEIN in H1/H1 cells. With this resource, we aim to fill a gap in neurodegenerative disease modeling with induced pluripotent stem cells (iPSC) for sporadic tauopathies.
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Affiliation(s)
- Tabea Strauß
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Department of Neurology, Technical University Munich, Munich, Germany
| | - Amir Marvian-Tayaranian
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Department of Neurology, Technical University Munich, Munich, Germany
| | - Eldem Sadikoglou
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Ashutosh Dhingra
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Florian Wegner
- Department of Neurology, Hanover Medical School, Hanover, Germany
- Center for Systems Neuroscience, Hanover, Germany
| | - Dietrich Trümbach
- Institute of Developmental Genetics, Helmholtz Zentrum München, Oberschleißheim, Germany
| | - Wolfgang Wurst
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Institute of Developmental Genetics, Helmholtz Zentrum München, Oberschleißheim, Germany
- TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Peter Heutink
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Department for Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Sigrid C. Schwarz
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Department of Neurology, Technical University Munich, Munich, Germany
- Geriatric Clinic Haag, Haag in Oberbayern, Germany
| | - Günter U. Höglinger
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Department of Neurology, Technical University Munich, Munich, Germany
- Department of Neurology, Hanover Medical School, Hanover, Germany
- Center for Systems Neuroscience, Hanover, Germany
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7
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Wen Y, Zhou Y, Jiao B, Shen L. Genetics of Progressive Supranuclear Palsy: A Review. JOURNAL OF PARKINSON'S DISEASE 2021; 11:93-105. [PMID: 33104043 PMCID: PMC7990399 DOI: 10.3233/jpd-202302] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 09/26/2020] [Indexed: 02/06/2023]
Abstract
Progressive supranuclear palsy (PSP) is an atypical parkinsonism with prominent 4R-tau neuropathology, and the classical clinical phenotype is characterized by vertical supranuclear gaze palsy, unprovoked falls, akinetic-rigid syndrome and cognitive decline. Though PSP is generally regarded as sporadic, there is increasing evidence suggesting that a series of common and rare genetic variants impact on sporadic and familial forms of PSP. To date, more than 10 genes have been reported to show a potential association with PSP. Among these genes, the microtubule-associated protein tau (MAPT) is the risk locus with the strongest effect size on sporadic PSP in the case-control genome-wide association studies (GWAS). Additionally, MAPT mutations are the most common cause of familial PSP while the leucine-rich repeat kinase 2 (LRRK2) is a rare monogenic cause of PSP, and several other gene mutations may mimic the PSP phenotype, like the dynactin subunit 1 (DCTN1). In total, 15 MAPT mutations have been identified in cases with PSP, and the mean age at onset is much earlier than in cases carrying LRRK2 or DCTN1 mutations. GWAS have further identified several risk loci of PSP, proposing molecular pathways related to PSP. The present review focused on genetic studies on PSP and summarized genetic factors of PSP, which may help to elucidate the underlying pathogenesis and provide new perspectives for therapeutic strategies.
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Affiliation(s)
- Yafei Wen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Yafang Zhou
- Department of Geriatrics Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Bin Jiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
- National Clinical Research Center for Geriatric Disorders, Central South University, Changsha, Hunan, PR China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, PR China
| | - Lu Shen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
- National Clinical Research Center for Geriatric Disorders, Central South University, Changsha, Hunan, PR China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, PR China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, Hunan, PR China
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8
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Gaig C, Ercilla G, Daura X, Ezquerra M, Fernández-Santiago R, Palou E, Sabater L, Höftberger R, Heidbreder A, Högl B, Iranzo A, Santamaria J, Dalmau J, Graus F. HLA and microtubule-associated protein tau H1 haplotype associations in anti-IgLON5 disease. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2019; 6:6/6/e605. [PMID: 31454761 PMCID: PMC6705627 DOI: 10.1212/nxi.0000000000000605] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/01/2019] [Indexed: 12/19/2022]
Abstract
Objectives We investigated the associations with HLA and microtubule-associated protein tau (MAPT) H1 haplotype in anti-IgLON5 disease, a recently identified disorder characterized by gait instability, brainstem dysfunction, and a prominent sleep disorder in association with IgLON5 antibodies and pathologic findings of a novel neuronal-specific tauopathy. Methods We compared the HLA alleles and MAPT H1/H1 genotype of 35 patients with anti-IgLON5 with healthy controls. The on-line server tool NetMHCIIpan 3.1 was used to predict the IgLON5 peptide binding to HLA Class II molecules. Results The HLA-DRB1*10:01-DQB1*05:01 haplotype was overrepresented in patients with anti-IgLON5 disease (OR = 54.5; 95% CI: 22.2–133.9, p < 0.0001). In addition, HLA-DQA was genotyped in 27 patients, and 25 (92.6%) of them had DQ molecules composed by DQA1*01 and DQB1*05 chains compared with 148/542 (27.3%) controls (OR = 43.9; 95% CI: 10.4–185.5, p < 0.0001). Patients DRB1*10:01 positive developed more frequently sleep or bulbar symptoms than those carrying other HLA alleles (70.0% vs 26.7%; p = 0.011). Prediction algorithms identified 2 IgLON5 peptides (1 located in the signal sequence) that showed strong binding to HLA-DRB1*10:01 and other HLA-DRB1, but not to HLA-DQA and HLA-DQB molecules. The MAPT H1/H1 homozygous genotype was present in 20/24 (83.3%) anti-IgLON5 Caucasian patients compared with 54/116 (46.5%) healthy controls (p = 0.0007). Conclusions The robust association of anti-IgLON5 disease with distinct HLA Class II molecules supports a primary autoimmune origin. The significant association of MAPT H1 haplotype also suggests that an underlying neurodegenerative process could be involved in anti-IgLON5 disease.
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Affiliation(s)
- Carles Gaig
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA.
| | - Guadalupe Ercilla
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Xavier Daura
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Mario Ezquerra
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Ruben Fernández-Santiago
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Eduard Palou
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Lidia Sabater
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Romana Höftberger
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Anna Heidbreder
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Birgit Högl
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Alex Iranzo
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Joan Santamaria
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Josep Dalmau
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
| | - Francesc Graus
- From the Service of Neurology (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Multidisciplinary Sleep Disorders Unit (C.G., A.I., J.S.), Hospital Clinic, Barcelona, Spain; Department of Immunology (G.E., E.P.), Hospital Clínic, Barcelona, Spain; Institute of Biotechnology and Biomedicine (X.D.), Universitat Autònoma de Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA) (X.D., J.D.), Barcelona, Spain; Laboratory of Parkinson Disease and Other Neurodegenerative Movement Disorders (M.E., R.F.-S.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Neuroimmunology Program (L.S., J.D., F.G.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Institute of Neurology (R.H.), Medical University of Vienna, Austria; Institute for Sleep Medicine and Neuromuscular Disorders (A.H.), University Hospital Muenster, Muenster, Germany; Department of Neurology (B.H.), Medical University of Innsbruck, Innsbruck, Austria; and Department of Neurology (J.D.), University of Pennsylvania, Philadelphia, PA
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9
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Drosophila Models of Sporadic Parkinson's Disease. Int J Mol Sci 2018; 19:ijms19113343. [PMID: 30373150 PMCID: PMC6275057 DOI: 10.3390/ijms19113343] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/17/2022] Open
Abstract
Parkinson’s disease (PD) is the most common cause of movement disorders and is characterized by the progressive loss of dopaminergic neurons in the substantia nigra. It is increasingly recognized as a complex group of disorders presenting widely heterogeneous symptoms and pathology. With the exception of the rare monogenic forms, the majority of PD cases result from an interaction between multiple genetic and environmental risk factors. The search for these risk factors and the development of preclinical animal models are in progress, aiming to provide mechanistic insights into the pathogenesis of PD. This review summarizes the studies that capitalize on modeling sporadic (i.e., nonfamilial) PD using Drosophilamelanogaster and discusses their methodologies, new findings, and future perspectives.
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10
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Razquin C, Ortega-Cubero S, Rojo-Bustamante E, Diez-Fairen M, Lorenzo E, Alonso E, Ezquerra M, Ross OA, Carcel M, Lorenzo-Betancor O, Soto AI, Burgess JD, Ertekin-Taner N, Dickson DW, Pastor MA, Tolosa E, Pastor P. Target-enriched sequencing of chromosome 17q21.31 in sporadic tauopathies reveals no candidate variants. Neurobiol Aging 2018; 66:177.e7-177.e10. [PMID: 29398119 DOI: 10.1016/j.neurobiolaging.2017.12.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 12/21/2017] [Accepted: 12/27/2017] [Indexed: 11/30/2022]
Abstract
The main genetic risk factors for progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD) are located at chromosome 17q21.31. The identification of risk H1 subhaplotypes suggests that disease-specific variants can be identified by resequencing the 17q21.31 region (1.4 Mb) in carriers of risk H1 subhaplotypes. We hypothesized that PSP/CBD H1 subhaplotype carriers could have undergone a mutational event absent among unaffected carriers leading to the disease risk. We performed this strategy in definite PSP subjects, definite CBD subjects, and healthy controls and tried to replicate the findings in a larger PSP/CBD case-control series. In the resequencing process, 40 candidate variants were identified, but an association between PSP and rs76970862 was replicated only using an unadjusted model. Gene expression association analysis of this variant suggested no potential functional effect. Although our results failed to identify disease-associated variants, it is still possible that the risk of PSP/CBD at chromosome 17 is driven by rare variants, even in PSP/CBD H1 cases or variants located outside the capture regions.
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Affiliation(s)
- Cristina Razquin
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Sara Ortega-Cubero
- Department of Neurology and Neurosurgery, Hospital Universitario de Burgos, Burgos, Spain; Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Estefania Rojo-Bustamante
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain; Department of Biochemistry and Genetics, School of Science and Neuroprotective Strategies Laboratory, Division of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain
| | - Monica Diez-Fairen
- Movement Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, and Fundació per la Recerca Biomèdica i Social Mútua Terrassa, Terrassa, Barcelona, Spain
| | - Elena Lorenzo
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Elena Alonso
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Mario Ezquerra
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain; Parkinson's Disease and Movement Disorders Unit, Neurology Service and Institut Clínic de Neurociències, Hospital Clínic de Barcelona, Universitat de Barcelona, IDIBAPS, Barcelona, Spain
| | - Owen A Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA; Department of Clinical Genomics, Mayo Clinic, Jacksonville, FL, USA
| | - Maria Carcel
- Movement Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, and Fundació per la Recerca Biomèdica i Social Mútua Terrassa, Terrassa, Barcelona, Spain
| | - Oswaldo Lorenzo-Betancor
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain; Veterans Affairs Puget Sound Health Care System, and Department of Neurology, University of Washington School of Medicine, Seattle, WA, USA
| | | | | | - Nilüfer Ertekin-Taner
- Department of Clinical Genomics, Mayo Clinic, Jacksonville, FL, USA; Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
| | | | - Maria A Pastor
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain; Neuroimaging Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain
| | - Eduard Tolosa
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain; Parkinson's Disease and Movement Disorders Unit, Neurology Service and Institut Clínic de Neurociències, Hospital Clínic de Barcelona, Universitat de Barcelona, IDIBAPS, Barcelona, Spain
| | - Pau Pastor
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra (CIMA), Pamplona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Instituto de Salud Carlos III, Madrid, Spain; Movement Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, and Fundació per la Recerca Biomèdica i Social Mútua Terrassa, Terrassa, Barcelona, Spain.
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11
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Nelson PT, Trojanowski JQ, Abner EL, Al-Janabi OM, Jicha GA, Schmitt FA, Smith CD, Fardo DW, Wang WX, Kryscio RJ, Neltner JH, Kukull WA, Cykowski MD, Van Eldik LJ, Ighodaro ET. "New Old Pathologies": AD, PART, and Cerebral Age-Related TDP-43 With Sclerosis (CARTS). J Neuropathol Exp Neurol 2016; 75:482-98. [PMID: 27209644 PMCID: PMC6366658 DOI: 10.1093/jnen/nlw033] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Indexed: 12/12/2022] Open
Abstract
The pathology-based classification of Alzheimer's disease (AD) and other neurodegenerative diseases is a work in progress that is important for both clinicians and basic scientists. Analyses of large autopsy series, biomarker studies, and genomics analyses have provided important insights about AD and shed light on previously unrecognized conditions, enabling a deeper understanding of neurodegenerative diseases in general. After demonstrating the importance of correct disease classification for AD and primary age-related tauopathy, we emphasize the public health impact of an underappreciated AD "mimic," which has been termed "hippocampal sclerosis of aging" or "hippocampal sclerosis dementia." This pathology affects >20% of individuals older than 85 years and is strongly associated with cognitive impairment. In this review, we provide an overview of current hypotheses about how genetic risk factors (GRN, TMEM106B, ABCC9, and KCNMB2), and other pathogenetic influences contribute to TDP-43 pathology and hippocampal sclerosis. Because hippocampal sclerosis of aging affects the "oldest-old" with arteriolosclerosis and TDP-43 pathologies that extend well beyond the hippocampus, more appropriate terminology for this disease is required. We recommend "cerebral age-related TDP-43 and sclerosis" (CARTS). A detailed case report is presented, which includes neuroimaging and longitudinal neurocognitive data. Finally, we suggest a neuropathology-based diagnostic rubric for CARTS.
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Affiliation(s)
- Peter T Nelson
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC).
| | - John Q Trojanowski
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Erin L Abner
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Omar M Al-Janabi
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Gregory A Jicha
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Frederick A Schmitt
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Charles D Smith
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - David W Fardo
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Wang-Xia Wang
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Richard J Kryscio
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Janna H Neltner
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Walter A Kukull
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Matthew D Cykowski
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Linda J Van Eldik
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
| | - Eseosa T Ighodaro
- From the Department of Pathology, Division of Neuropathology (PTN, JHN), Department of Neurology (GAJ, FAS, CDS), Department of Statistics (DWF, RJK), Department of Anatomy and Neurobiology (PTN, JHN, LJVE, ETI), Department of Epidemiology (ELA), and Sanders-Brown Center on Aging (PTN, ELA, OMA-J, GAJ, FAS, CDS, DWF, WXW, RJK, LJVE, ETI), University of Kentucky, Lexington, Kentucky; Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, Pennsylvannia (JQT); Department of Epidemiology, University of Washington, Seattle, Washington (WAK); and Department of Pathology, Houston Methodist Hospital, Houston, Texas (MDC)
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12
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Cervera-Carles L, Pagonabarraga J, Pascual-Sedano B, Pastor P, Campolongo A, Fortea J, Blesa R, Alcolea D, Morenas-Rodríguez E, Sala I, Lleó A, Kulisevsky J, Clarimón J. Copy number variation analysis of the 17q21.31 region and its role in neurodegenerative diseases. Am J Med Genet B Neuropsychiatr Genet 2016; 171B:175-80. [PMID: 26453547 DOI: 10.1002/ajmg.b.32390] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022]
Abstract
The H1 haplotype of the 17q21.31 inversion polymorphism has been consistently associated with progressive supranuclear palsy, corticobasal degeneration, and Parkinson's disease in Caucasians. Recently, large polymorphic segmental duplications resulting into complex rearrangements at this locus with a high diversity range in human populations have been revealed. We sought to explore whether the two multi-allelic copy number variants that are present in the H1 clade (with segmental duplications of 300 and 218 kilobases in length) could be responsible for the known H1-related risk of developing these neurodegenerative disorders. A total of 857 Spanish subjects including 330 patients with Parkinson's disease, 96 with progressive supranuclear palsy, 55 with corticobasal degeneration, 51 dementia with Lewy bodies, and 325 neurologically healthy controls, were genotyped for the H1/H2 haplotype. Subsequently, the two copy number variants that are characteristic of the H1 haplotype were evaluated through a high-resolution approach based on droplet digital polymerase chain reaction, in all H1 homozygous subjects. The H1 allele was significantly overrepresented in all diagnostic groups compared with controls (Parkinson's disease, P = 0.0001; progressive supranuclear palsy, P = 1.22 × 10(-6) ; corticobasal degeneration, P = 0.0002; and dementia with Lewy bodies, P = 0.032). However, no dosage differences were found for any of the two copy number variants analyzed. The H1 haplotype is associated with the risk of several neurodegenerative disorders, including dementia with Lewy bodies. However, common structural diversity within the 17q21.31-H1 clade does not explain this genetic association.
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Affiliation(s)
- Laura Cervera-Carles
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Pagonabarraga
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain.,Movement Disorders Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Berta Pascual-Sedano
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain.,Movement Disorders Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Pau Pastor
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain.,Memory and Movement Disorders Units, Department of Neurology, University Hospital Mútua de Terrassa, Barcelona, Spain
| | - Antonia Campolongo
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain.,Movement Disorders Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Juan Fortea
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Blesa
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Daniel Alcolea
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Estrella Morenas-Rodríguez
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Isabel Sala
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Alberto Lleó
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Jaime Kulisevsky
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain.,Movement Disorders Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Jordi Clarimón
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
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13
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Ishizuka T, Nakamura M, Ichiba M, Sano A. Familial semantic dementia with P301L mutation in the Tau gene. Dement Geriatr Cogn Disord 2011; 31:334-40. [PMID: 21555888 DOI: 10.1159/000328412] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/08/2011] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND/AIMS Semantic dementia (SD) is a clinical subclassification of frontotemporal lobar degeneration. Patients with 'pure SD' present with semantic memory impairment preceding the frontal symptoms, and there have been no reports of familial cases. METHODS We evaluated the clinical features of, and performed neuropsychological examinations on, the proband and two affected family members. Then we performed neuroimaging and genetic analysis of MAPT and other dementia-related genes in the proband. RESULTS All three cases had semantic memory impairment with loss of word meanings as the primary early symptom. We diagnosed all cases as pure SD and identified a P301L mutation in the MAPT gene of the proband. CONCLUSION Although the P301L mutation identified here has been previously described as pathogenic for frontotemporal dementia with parkinsonism-17 (FTDP-17), the proband and his two affected relatives showed different clinical symptoms from those of typical FTDP-17 cases who carry the P301L mutation. Pathologically, pure SD usually shows a TAR DNA-binding protein proteinopathy, but the molecular understanding of SD is not well established. Although our cases were clinically pure SD, the proband has a tau gene mutation, which would lead to tauopathy. These findings suggest that reconsideration of the molecular understanding of SD is warranted.
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Affiliation(s)
- Takanori Ishizuka
- Department of Psychiatry, Kagoshima University Graduate School of Medical and Dental Sciences, Japan
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14
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Ezquerra M, Compta Y, Marti MJ. Identifying the genetic components underlying the pathophysiology of movement disorders. APPLICATION OF CLINICAL GENETICS 2011; 4:81-92. [PMID: 23776369 PMCID: PMC3681180 DOI: 10.2147/tacg.s7333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Movement disorders are a heterogeneous group of neurological conditions, few of which have been classically described as bona fide hereditary illnesses (Huntington’s chorea, for instance). Most are considered to be either sporadic or to feature varying degrees of familial aggregation (parkinsonism and dystonia). In the late twentieth century, Mendelian monogenic mutations were found for movement disorders with a clear and consistent family history. Although important, these findings apply only to very rare forms of movement disorders. Already in the twenty-first century, and taking advantage of the modern developments in genetics and molecular biology, growing attention is being paid to the complex genetics of movement disorders. The search for risk genetic variants (polymorphisms) in large cohorts and the identification of different risk variants across different populations and ethnic groups are under way, with the most relevant findings to date corresponding to recent genome wide association studies in Parkinson’s disease. These new approaches focusing on risk variants may enable the design of screening tests for early or even preclinical disease, and the identification of likely therapeutic targets.
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Affiliation(s)
- Mario Ezquerra
- Parkinson's Disease and Movement Disorders Unit, Service of Neurology, Institute of Clinical Neurosciences, Hospital Clinic of Barcelona, IDIBAPS, CIBERNED, Spain
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15
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Donnelly MP, Paschou P, Grigorenko E, Gurwitz D, Mehdi SQ, Kajuna SLB, Barta C, Kungulilo S, Karoma NJ, Lu RB, Zhukova OV, Kim JJ, Comas D, Siniscalco M, New M, Li P, Li H, Manolopoulos VG, Speed WC, Rajeevan H, Pakstis AJ, Kidd JR, Kidd KK. The distribution and most recent common ancestor of the 17q21 inversion in humans. Am J Hum Genet 2010; 86:161-71. [PMID: 20116045 DOI: 10.1016/j.ajhg.2010.01.007] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 12/17/2009] [Accepted: 01/05/2010] [Indexed: 11/17/2022] Open
Abstract
The polymorphic inversion on 17q21, sometimes called the microtubular associated protein tau (MAPT) inversion, is an approximately 900 kb inversion found primarily in Europeans and Southwest Asians. We have identified 21 SNPs that act as markers of the inverted, i.e., H2, haplotype. The inversion is found at the highest frequencies in Southwest Asia and Southern Europe (frequencies of approximately 30%); elsewhere in Europe, frequencies vary from < 5%, in Finns, to 28%, in Orcadians. The H2 inversion haplotype also occurs at low frequencies in Africa, Central Asia, East Asia, and the Americas, though the East Asian and Amerindian alleles may be due to recent gene flow from Europe. Molecular evolution analyses indicate that the H2 haplotype originally arose in Africa or Southwest Asia. Though the H2 inversion has many fixed differences across the approximately 900 kb, short tandem repeat polymorphism data indicate a very recent date for the most recent common ancestor, with dates ranging from 13,600 to 108,400 years, depending on assumptions and estimation methods. This estimate range is much more recent than the 3 million year age estimated by Stefansson et al. in 2005.
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Affiliation(s)
- Michael P Donnelly
- Department of Genetics, School of Medicine, Yale University, New Haven, CT 06520, USA
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16
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Ezquerra M, Pastor P, Gaig C, Vidal-Taboada JM, Cruchaga C, Muñoz E, Martí MJ, Valldeoriola F, Aguilar M, Calopa M, Hernandez-Vara J, Tolosa E. Different MAPT haplotypes are associated with Parkinson's disease and progressive supranuclear palsy. Neurobiol Aging 2009; 32:547.e11-6. [PMID: 19879020 DOI: 10.1016/j.neurobiolaging.2009.09.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Revised: 08/07/2009] [Accepted: 09/27/2009] [Indexed: 10/20/2022]
Abstract
The H1 MAPT haplotype in the 17q21 chromosomal region has been associated with several neurodegenerative diseases. Some reports have suggested that there is an association between genetic variants within the H1 haplotype with Parkinson's disease (PD), progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). Here we report a genetic association study using seven SNPs located along the 17q21 region, in PD patients and controls. In addition, we compared these results with a dataset of previously published PSP/CBD patients from the same population. Our results show that the H1-rs242557(G) allele sub-haplotype is increased in PD (p=0.005), while the H1-rs242557(A) allele sub-haplotype is increased in PSP/CBD (p=0.0002), comparing to controls. The rs242557 polymorphism could act modulating the phenotypic expressivity of the H1 risk on these parkinsonisms. The location of this polymorphism in the 5' regulatory region of MAPT gene suggests the presence of a functional mechanism involved in the variation of MAPT expression levels.
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Affiliation(s)
- Mario Ezquerra
- Institut Clínic de Neurociències, Hospital Clínic de Barcelona, Department of Medicine, Universitat de Barcelona, IDIBAPS, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Catalonia, Spain
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17
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Refenes N, Bolbrinker J, Tagaris G, Orlacchio A, Drakoulis N, Kreutz R. Role of the H1 haplotype of microtubule-associated protein tau (MAPT) gene in Greek patients with Parkinson's disease. BMC Neurol 2009; 9:26. [PMID: 19558713 PMCID: PMC2709887 DOI: 10.1186/1471-2377-9-26] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Accepted: 06/28/2009] [Indexed: 11/10/2022] Open
Abstract
Background The extended tau haplotype (H1) that covers the entire human microtubule-associated protein tau (MAPT) gene has been implicated in Parkinson's disease (PD). Nevertheless, controversial results, such as two studies in Greek populations with opposite effects, have been reported. Therefore, we set out to determine whether the H1 haplotype and additional single nucleotide polymorphisms (SNPs) included in H1 are associated with PD in a sample of Greek patients. Methods We analysed MAPT haplotypes in cohorts of 122 patients and 123 controls of Greek origin, respectively. SNP genotyping was performed with Taqman assays and genotyping results were confirmed by sequencing. Results The presence of the H1 haplotype was significantly associated with PD (odds ratio for H1H1 vs. H1H2 and H2H2: 1.566; 95% CI: 1.137–2.157; P = 0.006) and remained so after adjustment for sex. Further analysis of H1 sub-haplotypes with three single nucleotide polymorphisms (rs242562, rs2435207 and rs3785883) demonstrated no significant association with PD. Conclusion Our data support the overall genetic role of MAPT and the H1 haplotype for PD susceptibility in Greek patients. However, the previously supported association of H1 sub-haplotypes with PD could not be confirmed in our study.
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Affiliation(s)
- Nikolaos Refenes
- School of Pharmacy, Department of Pharmaceutical Technology, National and Kapodistrian University of Athens, Athens, Greece.
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18
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Cruchaga C, Vidal-Taboada JM, Ezquerra M, Lorenzo E, Martinez-Lage P, Blazquez M, Tolosa E, Pastor P. 5′-upstream variants of CRHR1 and MAPT genes associated with age at onset in progressive supranuclear palsy and cortical basal degeneration. Neurobiol Dis 2009; 33:164-70. [DOI: 10.1016/j.nbd.2008.09.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Revised: 09/11/2008] [Accepted: 09/30/2008] [Indexed: 11/29/2022] Open
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19
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Canu E, Boccardi M, Ghidoni R, Benussi L, Testa C, Pievani M, Bonetti M, Binetti G, Frisoni GB. H1 haplotype of the MAPT gene is associated with lower regional gray matter volume in healthy carriers. Eur J Hum Genet 2008; 17:287-94. [PMID: 18854867 DOI: 10.1038/ejhg.2008.185] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The microtubule-associated protein Tau (MAPT) gene codes for the protein Tau that is involved in the pathogenesis of neurodegenerative diseases. Recent studies have detected an over-representation of the H1 haplotype of the MAPT gene in neurodegenerative disorders such as progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), frontotemporal dementia (FTD) and Parkinson's disease (PD), whereas the H2 haplotype has been found to be related to familial FTD. We aimed to investigate the association between MAPT haplotype status and brain morphology in healthy adults. A total of 150 healthy subjects underwent 3D high-resolution magnetic resonance (MR). MR images were processed following an optimized protocol to perform the Voxel-based morphometry (VBM) comparisons of the gray matter (GM) in H1 carriers (n=141) in contrast to H2H2 homozygous (n=9), and H1H1 homozygous (n=85) in contrast to H2 carriers (n=65). The threshold for statistical significance was 0.005 uncorrected. Opposite comparisons were also carried out. The groups had similar demographic and cognitive features. Compared with H2H2, the H1 carriers showed up to 19% smaller GM volume in the head of the right caudate nucleus, in the right middle frontal gyrus, in the left insula and orbito-frontal cortex, and in the inferior temporal and inferior cerebellar lobes, bilaterally. Compared with all H2 carriers, H1H1 displayed lower GM in the same regions, but the effect was smaller (5%), possibly due to a dilution effect by H1 in the H2 carriers group. The data suggest that H1 haplotype is associated with a particular cerebral morphology that may increase the susceptibility of the healthy carriers to develop neurodegenerative diseases such as sporadic tauopathies.
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Affiliation(s)
- Elisa Canu
- LENITEM Laboratory of Epidemiology, Neuroimaging, and Telemedicine, IRCCS Centro S Giovanni di Dio-FBF, Brescia, Italy
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20
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From 1997 to 2007: a decade journey through the H1 haplotype on 17q21 chromosome. Parkinsonism Relat Disord 2008; 15:2-5. [PMID: 18424220 DOI: 10.1016/j.parkreldis.2008.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2007] [Revised: 02/29/2008] [Accepted: 03/01/2008] [Indexed: 11/21/2022]
Abstract
The H1 haplotype was first identified 10 years ago. Initially, a dinucleotide polymorphism was detected in the tau (MAPT) gene and was subsequently found to be in linkage disequilibrium (LD) with other polymorphisms, forming the MAPT H1 haplotype, a risk factor for many neurological diseases, considered as tauopathies. Genetic and histopathologic data are in agreement that MAPT and its encoded protein have a pivotal role in the normal function of neurons. Currently, the H1 haplotype extends beyond the outer edges of MAPT encompassing multiple genes on chromosome 17 and thus increasing the number of candidate genes implicated in the pathogenesis of tauopathies. This review highlights the milestones and basic events in the journey towards uncovering the significance of the H1 haplotype.
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21
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Pittman A, de Silva R, Lees AJ, Wood NW. Genetics of progressive supranuclear palsy. HANDBOOK OF CLINICAL NEUROLOGY 2008; 89:475-485. [PMID: 18631770 DOI: 10.1016/s0072-9752(07)01244-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Alan Pittman
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Queen Square, London, UK
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22
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Dawson HN, Cantillana V, Chen L, Vitek MP. The tau N279K exon 10 splicing mutation recapitulates frontotemporal dementia and parkinsonism linked to chromosome 17 tauopathy in a mouse model. J Neurosci 2007; 27:9155-68. [PMID: 17715352 PMCID: PMC6672194 DOI: 10.1523/jneurosci.5492-06.2007] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Intracellular tau deposits are characteristic of several neurodegenerative disorders called tauopathies. The tau protein regulates the stability and assembly of microtubules by binding to microtubules through three or four microtubule-binding repeats (3R and 4R). The number of microtubule-binding repeats is determined by the inclusion or exclusion of the second microtubule-binding repeat encoded by exon 10 of the TAU gene. TAU gene mutations that alter the inclusion of exon 10, and hence the 4R:3R ratio, are causal in the tauopathy frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17). A mutation located in exon 10 has been identified in several FTDP-17 families that present with increased exon 10 inclusion in both mRNA and protein, parkinsonism, movement disorders, and dementia. We have engineered a human tau minigene construct that was designed to allow alternative splicing of the tau exon 10. Here we demonstrate that transgenic mice expressing human tau protein with this mutation develop neurodegeneration as result of aberrant splicing. The mice recapitulate many of the disease hallmarks that are seen in patients with this mutation, including increased tau exon 10 inclusion in both mRNA and protein, motor and behavioral deficits, and tau protein accumulation in neurons and tufted astrocytes. Furthermore, these mice present with degeneration of the nigrostriatal dopaminergic pathway, suggesting a possible mechanism for parkinsonism in FTDP-17. Additionally, activated caspase-3 immunoreactivity in both neurons and astrocytes implicates the involvement of the apoptotic pathway in the pathology of these mice.
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Affiliation(s)
- Hana N Dawson
- Division of Neurology, Duke University, Durham, North Carolina 27710, USA.
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23
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Caffrey TM, Wade-Martins R. Functional MAPT haplotypes: bridging the gap between genotype and neuropathology. Neurobiol Dis 2007; 27:1-10. [PMID: 17555970 PMCID: PMC2801069 DOI: 10.1016/j.nbd.2007.04.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Revised: 04/17/2007] [Accepted: 04/27/2007] [Indexed: 02/02/2023] Open
Abstract
The microtubule-associated protein tau (MAPT) locus has long been associated with sporadic neurodegenerative disease, notably progressive supranuclear palsy and corticobasal degeneration, and more recently with Alzheimer's disease and Parkinson's disease. However, the functional biological mechanisms behind the genetic association have only now started to emerge. The genomic architecture in the region spanning MAPT is highly complex, and includes a approximately 1.8 Mb block of linkage disequilibrium (LD). The region is divided into two major haplotypes, H1 and H2, defined by numerous single nucleotide polymorphisms and a 900 kb inversion which suppresses recombination. Fine mapping of the MAPT region has identified sub-clades of the MAPT H1 haplotype which are specifically associated with neurodegenerative disease. Here we briefly review the role of MAPT in sporadic and familial neurodegenerative disease, and then discuss recent work which, for the first time, proposes functional mechanisms to link MAPT haplotypes with the neuropathology seen in patients.
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Affiliation(s)
- Tara M. Caffrey
- The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, OX3 7BN United Kingdom
| | - Richard Wade-Martins
- The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, OX3 7BN United Kingdom
- To whom correspondence should be addressed Tel: +44 01865 287761 Fax: +44 01865 287501
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Laws SM, Friedrich P, Diehl-Schmid J, Müller J, Eisele T, Bäuml J, Förstl H, Kurz A, Riemenschneider M. Fine mapping of the MAPT locus using quantitative trait analysis identifies possible causal variants in Alzheimer's disease. Mol Psychiatry 2007; 12:510-7. [PMID: 17179995 DOI: 10.1038/sj.mp.4001935] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In addition to senile plaques, neurofibrillary tangles are characteristic of Alzheimer's disease (AD) pathology, suggesting a clear involvement of the microtubule-associated protein tau (MAPT) in AD. Recent findings, suggesting that the H1c haplotype is associated with increased risk, now also implicate MAPT genetically. In this study, we aim to clarify this association by a fine mapping approach using both a traditional phenotypic association analysis and a quantitative trait (QT) analysis using cerebrospinal fluid (CSF) tau protein levels in the German population. Here, we report that both methodologies identify that the H1c haplotype may play important role in AD (AD risk, P=0.007, uncorrected; CSF tau levels, P=0.027, uncorrected). Further, the use of a sliding window approach in the QT analysis allowed for the narrowing down of the region where a probable causal variant may be located. The data suggest that this may lie at or within close proximity to the rs242557 single nucleotide polymorphism as association with CSF tau levels seems to be primarily driven by rs242557 in a gene dosage-dependent manner (trend model: P=0.002, uncorrected). These findings provide functional evidence to support the genetic association of MAPT with AD.
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Affiliation(s)
- S M Laws
- Neurochemistry and Neurogenetics Laboratory, Department of Psychiatry and Psychotherapy, Technische Universität München, München, Germany
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Ghidoni R, Signorini S, Barbiero L, Sina E, Cominelli P, Villa A, Benussi L, Binetti G. The H2 MAPT haplotype is associated with familial frontotemporal dementia. Neurobiol Dis 2006; 22:357-62. [PMID: 16410051 DOI: 10.1016/j.nbd.2005.11.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2005] [Revised: 10/14/2005] [Accepted: 11/29/2005] [Indexed: 10/25/2022] Open
Abstract
There is now considerable evidence that the gene encoding for tau protein (MAPT) is implicated in frontotemporal dementia (FTD). The role of MAPT haplotypes in neurodegenerative diseases has been suggested, but their contribution in familial dementia has not been extensively investigated. Here, we investigated (1) the association between the MAPT haplotypes and sporadic (sFTD) or familial FTD (FFTD) (controls n = 99, sFTD n = 53, FFTD n = 50), (2) the interactive effect between MAPT haplotypes and APOE gene. We found an overrepresentation of H2 haplotype (OR = 1.83, P = 0.029) and of H2H2 genotype in FFTD patients (OR = 6.09, P = 0.007). This association was even stronger in APOE e4 negatives FFTD (H2: OR = 2.9, P = 0.001; H2H2: OR = 12.67, P = 0.001). Our results support idea that the MAPT H2 haplotype is a risk factor for FFTD. This locus could contain this or other inheritable genetic determinants contributing to increase risk of developing dementia.
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Affiliation(s)
- Roberta Ghidoni
- NeuroBioGen Lab-Memory Clinic, IRCCS Centro San Giovanni di Dio-Fatebenefratelli, via Pilastroni 4, 25125 Brescia, Italy
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26
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van Balken I, Litvan I. Current and future treatments in progressive supranuclear palsy. Curr Treat Options Neurol 2006; 8:211-23. [PMID: 16569380 DOI: 10.1007/s11940-006-0012-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Progressive supranuclear palsy (PSP) is an atypical parkinsonian disorder that, in spite of its growing recognition, is still underdiagnosed. For management, prognosis, and research, an accurate and early diagnosis is essential. PSP is a relentlessly progressive neurodegenerative disorder, clinically characterized by parkinsonism with prominent axial involvement and postural instability, bulbar symptoms, supranuclear ophthalmoplegia, and executive dysfunction. Abnormal neuronal and glial four-repeat tau aggregations affecting the basal ganglia and selective brainstem structures result in dysfunction of the five frontosubcortical circuits and brainstem functions. Primary therapeutic approaches are based on neurotransmitter replacement and palliative strategies. This article reviews the experience and challenges with neurotransmitter replacement and palliative strategies through an extensive literature search of studies published between 1965 and 2005. The role of and limited experience with alternative therapies, such as deep brain stimulation and pallidotomy, are also discussed. Advances in the development of biological therapies for PSP and a better understanding of its etiopathogenesis will likely result from epidemiologic studies and developed four-repeat tau-transgenic animal models. The management of patients with this disorder poses a considerable challenge and includes symptomatic and palliative strategies, as well as education and support, to improve the quality of life for patients and their caregivers.
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Affiliation(s)
- Irene van Balken
- University of Louisville School of Medicine, Department of Neurology, A Building, Room 113, 500 South Preston, Louisville, KY 40202, USA
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27
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Scaravilli T, Tolosa E, Ferrer I. Progressive supranuclear palsy and corticobasal degeneration: lumping versus splitting. Mov Disord 2005; 20 Suppl 12:S21-8. [PMID: 16092076 DOI: 10.1002/mds.20536] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD) are both sporadic disorders with tau pathology. Criteria have been defined that in most instances allow for adequate diagnosis of the two disorders both clinically and neuropathologically; however, overlap is not uncommon. For example, patients with PSP may present with severe unilateral apraxia and supranuclear gaze palsy can occur in CBD. Pathological overlap also occurs and pathologically "mixed" cases are encountered. Common to both these two tauopathies is that isoforms of four-repeat tau due to splicing of exon 10 define the tau filamentous aggregates. This is in contrast to other tau disorders such as Pick's with three-repeat tau aggregates. Additional evidence for a causal link between PSP and CBD is the finding that both disorders are homozygous for the H1 tau haplotype. Furthermore, in some families with parkinsonism linked to defined mutations of the tau gene (FTDP-17), involved relatives have presented with PSP whereas others with the CBD phenotype. Although PSP and CBD frequently can be clearly separated clinically and pathologically, the degree of clinicopathological and genetic overlap is important and suggests that they represent different phenotypes of the same disorder, with differences occurring perhaps in relation to different genetic background. That PSP and CBD are distinct nosological entities occurring in patients with similar genetic predisposition cannot be ruled out.
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Baba Y, Tsuboi Y, Baker MC, Uitti RJ, Hutton ML, Dickson DW, Farrer M, Putzke JD, Woodruff BK, Ghetti B, Murrell JR, Boeve BF, Petersen RC, Verpillat P, Brice A, Delisle MB, Rascol O, Arima K, Dysken MW, Yasuda M, Kobayashi T, Sunohara N, Komure O, Kuno S, Sperfeld AD, Stoppe G, Kohlhase J, Pickering-Brown S, Neary D, Bugiani O, Wszolek ZK. The Effect of tau genotype on clinical features in FTDP-17. Parkinsonism Relat Disord 2005; 11:205-8. [PMID: 15878580 DOI: 10.1016/j.parkreldis.2005.01.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2004] [Revised: 12/24/2004] [Accepted: 01/05/2005] [Indexed: 10/25/2022]
Abstract
The clinical phenotype of frontotemporal dementia with parkinsonism linked to chromosome 17 (FTDP-17) varies. This variability is seen not only between kindreds with different mutations but also in families sharing the same mutation. Inheritance of tau haplotype (H1) and genotype (H1/H1) has been established as a risk factor for some neurodegenerative disorders with parkinsonism. We assessed the effect of tau polymorphism on the clinical features of FTDP-17 in 61 cases from 30 separately ascertained families with four different tau mutations, including P301L, +16, N279K, and P301S. There were no significant differences of age at symptomatic onset and disease duration between H1/H1 and H1/H2 genotypes. The comparison between tau genotype and type of initial clinical sign showed an association between the H1/H1 genotype and parkinsonian phenotype and between the H1/H2 genotype and frontotemporal dementia phenotype (OR=11.7; 95% confidence interval, 1.4-98.7; P=0.008). Our results suggest that tau genotype does not influence the disease course. However, it may predispose to a specific clinical sign in the early stage of FTDP-17.
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Affiliation(s)
- Yasuhiko Baba
- Department of Neurology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
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Gao L, Tucker KL, Andreadis A. Transcriptional regulation of the mouse microtubule-associated protein tau. ACTA ACUST UNITED AC 2004; 1681:175-81. [PMID: 15627509 DOI: 10.1016/j.bbaexp.2004.10.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2004] [Revised: 10/12/2004] [Accepted: 10/22/2004] [Indexed: 10/26/2022]
Abstract
The microtubule-associated protein (MAP) tau is found primarily in neurons and errors in its regulation are associated with Alzheimer's disease and other neurodegenerative disorders. Tau expression is transcriptionally regulated and tissue-specific. In this study, starting with a approximately 7500-bp fragment from the mouse tau gene, which includes tau exon -1, we define regions preferentially conferring tissue-specific expression. Furthermore, gel shift assays indicate that transcriptional regulators SP-1 and AP-2 are important for basal expression but not necessary for neuron-specific expression of the tau transcript.
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Affiliation(s)
- Lei Gao
- Shriver Center for Mental Retardation, Waltham, MA 02452, USA
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Skipper L, Wilkes K, Toft M, Baker M, Lincoln S, Hulihan M, Ross OA, Hutton M, Aasly J, Farrer M. Linkage disequilibrium and association of MAPT H1 in Parkinson disease. Am J Hum Genet 2004; 75:669-77. [PMID: 15297935 PMCID: PMC1182054 DOI: 10.1086/424492] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2003] [Accepted: 07/14/2004] [Indexed: 01/13/2023] Open
Abstract
The MAPT H1 haplotype has been associated with four-repeat (4R) tauopathies, including progressive supranuclear palsy, corticobasal degeneration, and argyrophilic grain disease. More controversial is that the same haplotype has been associated with Parkinson disease (PD). Using H1-specific single-nucleotide polymorphisms, we demonstrate that MAPT H1 is a misnomer and consists of a family of recombining H1 alleles. Population genetics, linkage disequilibrium, and association analyses have shown that specific MAPT H1 subhaplotypes are preferentially associated with Parkinson disease. Using a sliding scale of MAPT H1-specific haplotypes--in age/sex-matched PD cases and controls from central Norway--we have refined the disease association to within an approximately 90-kb interval of the 5' end of the MAPT locus.
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Affiliation(s)
- Lisa Skipper
- Laboratories of Neurogenetics, Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
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Pastor P, Ezquerra M, Perez JC, Chakraverty S, Norton J, Racette BA, McKeel D, Perlmutter JS, Tolosa E, Goate AM. Novel haplotypes in 17q21 are associated with progressive supranuclear palsy. Ann Neurol 2004; 56:249-58. [PMID: 15293277 DOI: 10.1002/ana.20178] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD) are sporadic neurodegenerative diseases presenting as atypical parkinsonian disorders, characterized by the presence of tau-positive neurofibrillary tangles. Recently, an extended haplotype (H1E) of 787.6 kb that comprises several genes including MAPT showed increased association with PSP. The objective of this study was to determine the size of the H1E haplotype associated with PSP and CBD in different populations and to identify specific subhaplotypes in the background of H1E haplotype. Nineteen single nucleotide polymorphisms (SNPs) in the 17q21 region were genotyped in two case-control samples. The SNPs that were associated with higher risk for the disease in the homozygous state delimit a region of more that 1 Mb. Haplotype analyses in the Spanish sample showed that the most frequent haplotype found among the patients (H1E'), which extends 1.04 Mb and contains several genes such as MAPT, CRHR1, IMP5, Saitohin, WTN3, and NSF. A specific subhaplotype (H1E'A) was present in 16% of PSP patients but was not observed in the controls. Furthermore, the H2E'A haplotype, was rarely present in the disease group suggesting that it plays a protective role. The identification of these specific subhaplotypes that modify risk for PSP/CBD supports the hypothesis that a pathogenic allele exists in a subgroup of PSP patients.
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Affiliation(s)
- Pau Pastor
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
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Huang Y, Cheung L, Rowe D, Halliday G. Genetic contributions to Parkinson's disease. ACTA ACUST UNITED AC 2004; 46:44-70. [PMID: 15297154 DOI: 10.1016/j.brainresrev.2004.04.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2004] [Indexed: 01/12/2023]
Abstract
Sporadic Parkinson's disease (PD) is a common neurodegenerative disorder, characterized by the loss of midbrain dopamine neurons and Lewy body inclusions. It is thought to result from a complex interaction between multiple predisposing genes and environmental influences, although these interactions are still poorly understood. Several causative genes have been identified in different families. Mutations in two genes [alpha-synuclein and nuclear receptor-related 1 (Nurr1)] cause the same pathology, and a third locus on chromosome 2 also causes this pathology. Other familial PD mutations have identified genes involved in the ubiquitin-proteasome system [parkin and ubiquitin C-terminal hydroxylase L1 (UCHL1)], although such cases do not produce Lewy bodies. These studies highlight critical cellular proteins and mechanisms for dopamine neuron survival as disrupted in Parkinson's disease. Understanding the genetic variations impacting on dopamine neurons may illuminate other molecular mechanisms involved. Additional candidate genes involved in dopamine cell survival, dopamine synthesis, metabolism and function, energy supply, oxidative stress, and cellular detoxification have been indicated by transgenic animal models and/or screened in human populations with differing results. Genetic variation in genes known to produce different patterns and types of neurodegeneration that may impact on the function of dopamine neurons are also reviewed. These studies suggest that environment and genetic background are likely to have a significant influence on susceptibility to Parkinson's disease. The identification of multiple genes predisposing to Parkinson's disease will assist in determining the cellular pathway/s leading to the neurodegeneration observed in this disease.
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Affiliation(s)
- Yue Huang
- Prince of Wales Medical Research Institute and the University of New South Wales, Barker Street, Randwick, Sydney 2031, Australia
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Healy DG, Abou-Sleiman PM, Lees AJ, Casas JP, Quinn N, Bhatia K, Hingorani AD, Wood NW. Tau gene and Parkinson's disease: a case-control study and meta-analysis. J Neurol Neurosurg Psychiatry 2004; 75:962-5. [PMID: 15201350 PMCID: PMC1739086 DOI: 10.1136/jnnp.2003.026203] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To investigate whether the tau H1 haplotype is a genetic risk factor in Parkinson's disease and to report a meta-analysis on all previously published data METHODS and results: In a sample of 580 patients with Parkinson's disease and 513 controls there was an increased risk of Parkinson's disease for both the tau H1 haplotype (p<or=0.0064; odds ratio (OR) 1.34 (95% confidence interval (CI), 1.04 to 1.72)) and the H1H1 genotype (p<or=0.0047; OR 1.42 (1.1 to 1.83)). Under a fixed effect model, the summary OR for this showed that individuals homozygous for the H1 allele were 1.57 times more likely to develop Parkinson's disease than individuals carrying the H2 allele (95% CI 1.33 to 1.85; p<0.00001). The population attributable risk for the tau variant, for the main comparison of H1H1 against H2 carriers, was 24.8% for all studies combined. CONCLUSIONS Homozygosity for the tau H1 is associated with an increased risk of Parkinson's disease. This adds to the growing body of evidence that common genetic variation contributes to the pathogenesis of this disorder.
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Affiliation(s)
- D G Healy
- Department of Molecular Neuroscience, Institute of Neurology, Queen Square, London, UK
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Oliveira SA, Scott WK, Zhang F, Stajich JM, Fujiwara K, Hauser M, Scott BL, Pericak-Vance MA, Vance JM, Martin ER. Linkage disequilibrium and haplotype tagging polymorphisms in the Tau H1 haplotype. Neurogenetics 2004; 5:147-55. [PMID: 15459824 DOI: 10.1007/s10048-004-0180-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2003] [Accepted: 03/30/2004] [Indexed: 10/26/2022]
Abstract
We and others have previously detected association of the Tau H1 haplotype on chromosome 17 with risk of idiopathic Parkinson disease (PD). The H1 haplotype appears to have a fundamental importance in neurodegeneration, as multiple studies have shown it is also associated with an increased risk for progressive supranuclear palsy, corticobasal degeneration, frontotemporal lobar degeneration syndromes, and primary progressive aphasia. Therefore, to divide the H1 haplotype into sub-haplotypes that could be more significantly associated with the risk of developing PD, and to delimit the genes lying in the H1 haplotype, we analyzed 34 single nucleotide polymorphisms (SNPs) spanning over 3.15 megabases in the region containing Tau. These SNPs are located in or flank the corticotropin-releasing hormone receptor 1, presenilin homolog 2, Tau, Saitohin, and KIAA1267 genes. Analysis of linkage disequilibrium (LD) using these 34 SNPs suggests that the H1 haplotype extends over about 1.3 megabases, making it the largest region of LD reported to date. Of the 29 SNPs lying in this region of LD, 5 were identified as "haplotype tagging" SNPs (htSNPs), capturing 96% of the sample's haplotype diversity. Association analysis with these htSNPs revealed a new H1 sub-haplotype that is significantly associated with PD ( P<0.02). These results define the genes and regulatory regions included in this region of LD, containing an important susceptibility allele contributing to increased risk of neurodegeneration.
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Affiliation(s)
- Sofia A Oliveira
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
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Tolosa E, Calandrella D, Gallardo M. Caribbean parkinsonism and other atypical Parkinsonian disorders. Parkinsonism Relat Disord 2004; 10 Suppl 1:S19-26. [PMID: 15109583 DOI: 10.1016/j.parkreldis.2004.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2004] [Revised: 02/23/2004] [Accepted: 02/23/2004] [Indexed: 11/25/2022]
Abstract
Atypical parkinsonism (AP) is a term applied to disorders characterized by parkinsonism that evolves rapidly, with poor or transient response to levodopa, or has other associated features such as early falls and postural instability, early autonomic failure, supranuclear gaze palsy, pyramidal or cerebellar signs, alien hand syndrome or severe ideomotor apraxia. The most common AP are multiple system atrophy, progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). Other APs include Caribbean parkinsonism (CP) and parkinsonism-dementia complex of Guam (PDC). In this review we provide an update in etiology, neuropathology, diagnosis and treatment of atypical parkinsonian disorders associated with protein tau deposit, also known as tauopathies.
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Affiliation(s)
- Eduardo Tolosa
- Parkinson's Disease and Movement Disorders Unit, Neurology Service, Institut Clinic Malaltias del Sistema Nervios, Hospital Clínic Universitari, University of Barcelona, Spain.
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Avila J, Lucas JJ, Perez M, Hernandez F. Role of tau protein in both physiological and pathological conditions. Physiol Rev 2004; 84:361-84. [PMID: 15044677 DOI: 10.1152/physrev.00024.2003] [Citation(s) in RCA: 656] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The morphology of a neuron is determined by its cytoskeletal scaffolding. Thus proteins that associate with the principal cytoskeletal components such as the microtubules have a strong influence on both the morphology and physiology of neurons. Tau is a microtubule-associated protein that stabilizes neuronal microtubules under normal physiological conditions. However, in certain pathological situations, tau protein may undergo modifications, mainly through phosphorylation, that can result in the generation of aberrant aggregates that are toxic to neurons. This process occurs in a number of neurological disorders collectively known as tauopathies, the most commonly recognized of which is Alzheimer's disease. The purpose of this review is to define the role of tau protein under normal physiological conditions and to highlight the role of the protein in different tauopathies.
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Affiliation(s)
- Jesus Avila
- Centro de Biología Molecular "Severo Ochoa", Facultad de Ciencias, Campus de Cantoblanco, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Rossi G, Gasparoli E, Pasquali C, Di Fede G, Testa D, Albanese A, Bracco F, Tagliavini F. Progressive supranuclear palsy and Parkinson's disease in a family with a new mutation in the tau gene. Ann Neurol 2004; 55:448. [PMID: 14991829 DOI: 10.1002/ana.20006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Conrad C, Vianna C, Schultz C, Thal DR, Ghebremedhin E, Lenz J, Braak H, Davies P. Molecular evolution and genetics of the Saitohin gene and tau haplotype in Alzheimer's disease and argyrophilic grain disease. J Neurochem 2004; 89:179-88. [PMID: 15030402 DOI: 10.1046/j.1471-4159.2004.02320.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A single nucleotide polymorphism that results in an amino acid change (Q7R) has been identified in the Saitohin (STH) gene and was initially found to be over-represented in the homozygous state in subjects with late-onset Alzheimer's disease (AD). More extensive studies provide limited support for the association with AD, but confirm an association of the Q allele with progressive supranuclear palsy and argyrophilic grain disease. A homologous sequence was found in the appropriate location of the rat and mouse tau genes, but there was no open reading frame allowing STH expression in these species, suggesting relatively recent evolution of this gene. In some non-human primates, the STH gene was identified, and this was found to differ from the human gene at two of 128 amino acids. All primates in which the STH gene was identified were homozygous for the R allele of STH, suggesting this is the ancestral allele. This observation was surprising, in that the Q allele is more common in human populations, and raises the possibility that natural selection has operated to favor individuals carrying this allele. The STH polymorphism is part of the tau gene haplotype, of which two major variants exist in human populations, the Q being part of the H1 haplotype and the R part of the H2 haplotype. More detailed studies confirm the H2 haplotype to be the ancestral tau gene. This situation is reminiscent of the evolution of the apolipoprotein (ApoE) gene, another locus that is potentially important for the risk of development of AD.
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Affiliation(s)
- Chris Conrad
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York, USA.
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40
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Abstract
The advent of molecular biology has changed the way in which neurological illnesses are classified, and the single genes causing a number of disorders have been identified. In addition, techniques such as linkage analysis and DNA sequencing have resulted in greater understanding of multi-gene diseases. This review covers some of the molecular tools and animal models used for genetic analysis and for DNA based diagnosis, and a brief survey of information available on the internet.
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Affiliation(s)
- S-M Pulst
- Division of Neurology, Cedars-Sinai Medical Center, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
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Campdelacreu J, Kumru H, Tolosa E, Valls-Solé J, Benabarre A. Progressive supranuclear palsy syndrome induced by clebopride. Mov Disord 2003; 19:482-4. [PMID: 15077251 DOI: 10.1002/mds.10692] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We report on a patient who presented with a progressive supranuclear palsy (PSP) syndrome while receiving clebopride (CLB), a prokinetic drug with central antidopaminergic properties. The clinical and neurophysiological signs progressively disappeared after CLB withdrawal. To our knowledge, this is the first published PSP-like syndrome attributable to an antidopaminergic drug.
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Affiliation(s)
- Jaume Campdelacreu
- Parkinson's Disease and Movement Disorders Unit, Neurology Service, Institut Clínic de Malalties del Sistema Nerviós (ICMSN), Hospital Clínic Universitari, Barcelona, Spain
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Campdelacreu J, Ezquerra M, Muñoz E, Oliva R, Tolosa E. Mutational study of the nuclear factor kappa B inducing kinase gene in patients with progressive supranuclear palsy. Neurosci Lett 2003; 340:158-60. [PMID: 12668260 DOI: 10.1016/s0304-3940(03)00105-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The nuclear factor kappa B inducing kinase gene (NIK) is located near the region of the haplotype associated with progressive supranuclear palsy (PSP) in chromosome 17q. We have analysed the coding region of the NIK gene in PSP patients through single strand conformation polymorphism and direct sequencing, in order to investigate the possible existence of pathogenic mutations. A change in exon 15 consisting of a G/C variation in position 2839 was found. This change was then analysed through restriction endonuclease HphI in 40 PSP samples and 35 control samples, but no differences in allelic frequency were found between the PSP and control groups. Our results do not support a pathogenic role of the NIK gene in PSP.
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Affiliation(s)
- Jaume Campdelacreu
- Parkinson's Disease and Movement Disorders Unit, Neurology Service, Institut Clínic de Malalties del Sistema Nerviós, Hospital Clínic Universitari, Villarroel 170, 08036 Barcelona, Spain
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Abstract
Tau is a microtubule-associated protein involved in microtubule assembly and stabilization. Abnormal filamentous tau deposits constitute a major defining characteristic of several neurodegenerative diseases, including Alzheimer's disease. Although the presence of tau pathology correlates with the symptoms of Alzheimer's disease, there was no genetic evidence linking tau to neurodegeneration until recently. However, since 1998, the identification of more than 25 mutations in the tau gene, associated with frontotemporal dementia and parkinsonism linked to chromosome 17, has demonstrated that tau dysfunction can lead to neurodegeneration and the development of clinical symptoms.
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Affiliation(s)
- Esther M Ingram
- Dept of Neurology and Cambridge Centre for Brain Repair, University of Cambridge, UK
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Abstract
PURPOSE OF THE REVIEW This review focuses on the recent additions to the literature in the clinical and genetic aspects of progressive supranuclear palsy. RECENT FINDINGS Clinical features of progressive supranuclear palsy are reasonably well established and known to be quite characteristic. Recent epidemiological studies suggest that the disorder is more common than previously considered and that it is frequently misdiagnosed. New laboratory and novel imaging techniques are being tested and cerebrospinal fluid levels of tau protein have been found helpful in diagnosis. Pathological and biochemical studies in progressive supranuclear palsy brains have shown the predominance of hyperphosphorylated tau isoforms which contain the sequence encoded by exon 10 (4R) aggregated into filaments. Familial tauopathies linked to tau gene mutations showing clinical and neuropathological overlap with sporadic progressive supranuclear palsy have been described. Despite recent discoveries of the strong genetic association of sporadic progressive supranuclear palsy with tau gene polymorphisms, a specific risk allele for developing the palsy has not yet been identified yet. SUMMARY Recent clinical studies and clinicopathological correlations are contributing significantly to the delineation of the clinical features of progressive supranuclear palsy. These features and the appropriate use of laboratory tests allow for an earlier identification of the disease and a more accurate premortem diagnosis. However, no specific biological markers for the disorder are available yet, and consequently diagnosis in the early stages or when some of the characteristic signs and symptoms are missing, remains a major challenge. Despite the recent advances in the understanding of genetic factors involved in progressive supranuclear palsy, the cause of the disease still remains unknown. Biochemical studies in brains from progressive supranuclear palsy patients provide a potential helpful instrument to improve the characterization of this disorder.
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Affiliation(s)
- Pau Pastor
- Parkinson's disease and Movement Disorders Unit, Neurology Service, Clinical Institute for Nervous System Disorders, University Hospital Clinic, August Pi i Sunyer Institute for Biomedical Investigation, Villaroel 170, 08036 Barcelona, Spain
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